Quote Originally Posted by walpurgis View Post
I left mine with the standard tube. Didn't see much point in playing around with it as it sounded excellent as it was.

Same with the standard power supply, I stuck with that as it worked fine. Using batteries could be tricky, I've seen the Bellari's marked 12v DC which would be OK with batteries, but also 15v examples and some with AC inputs. It would depend on which one you tried I guess.
I read somewhere yesterday that it is recommended to let the tubes break in before jumping to conclusions regarding the sound quality. Is that your experience as well?

I have a linear power supply that could be used to power Bellari. I'll experiment with it once the unit arrives, and will post my findings here.